Load Specifications
Bullet Manufacturer:Cutting Edge
Bullet Weight:300 gr
Bullet Diameter:0.375"
Bullet Length:<<locked>>
Caliber:.375 H&H Mag. load data
Case Length (l3):2.859"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:95.3 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:15.0
Load data in caliber .375 H&H Mag. with .375 | 300gr | CutEdge Maximus bullet and 104 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and Hodgdon LEVERevolution.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 90% | 56,318 psi | 90% | 2365 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 54,694 psi | 88% | 2395 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 52,997 psi | 85% | 2379 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 56,130 psi | 90% | 2444 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 54,505 psi | 87% | 2382 fps | 96.2% |
| Accurate 4064 | <<locked>> | 98% | 56,217 psi | 90% | 2457 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 44,889 psi | 72% | 2382 fps | 98.1% |
| Accurate LT-30 | <<locked>> | 84% | 56,376 psi | 90% | 2320 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 53,447 psi | 86% | 2303 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 55,201 psi | 89% | 2454 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 98% | 56,188 psi | 90% | 2451 fps | 99.7% |
| ADI AR 2219 | <<locked>> | 82% | 53,272 psi | 85% | 2385 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 54,708 psi | 88% | 2415 fps | 100% |
| Alliant AR-Comp | <<locked>> | 90% | 54,375 psi | 87% | 2392 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 56,333 psi | 90% | 2507 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 54,592 psi | 88% | 2556 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 55,883 psi | 90% | 2464 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 55,158 psi | 88% | 2464 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 86% | 56,318 psi | 90% | 2372 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 56,304 psi | 90% | 2487 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,295 psi | 73% | 2392 fps | 98.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 52,243 psi | 84% | 2523 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 55,259 psi | 89% | 2323 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 55,056 psi | 88% | 2470 fps | 99.4% |
| Bofors RP3 | <<locked>> | 98% | 55,521 psi | 89% | 2480 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 53,055 psi | 85% | 2402 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 88% | 53,447 psi | 86% | 2359 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 53,214 psi | 85% | 2441 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 55,129 psi | 88% | 2526 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 86% | 55,419 psi | 89% | 2411 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 52,866 psi | 85% | 2395 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 53,708 psi | 86% | 2448 fps | 98.9% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 48,936 psi | 78% | 2431 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 92% | 55,695 psi | 89% | 2464 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,408 psi | 66% | 2293 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,244 psi | 87% | 2490 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,606 psi | 55% | 1427 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 53,853 psi | 86% | 2425 fps | 99.9% |
| IMR 3031 | <<locked>> | 92% | 54,911 psi | 88% | 2444 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 55,680 psi | 89% | 2434 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 94% | 56,420 psi | 90% | 2418 fps | 97.4% |
| IMR 4198 | <<locked>> | 84% | 53,708 psi | 86% | 2297 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 55,274 psi | 89% | 2434 fps | 97.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,120 psi | 69% | 2336 fps | 97.8% |
| IMR 4895 | <<locked>> | 94% | 54,027 psi | 87% | 2467 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 90% | 54,708 psi | 88% | 2415 fps | 100% |
| Lovex D073.5 | <<locked>> | 86% | 54,578 psi | 88% | 2405 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 54,172 psi | 87% | 2434 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 55,492 psi | 89% | 2392 fps | 99.9% |
| Lovex S062 | <<locked>> | 96% | 54,781 psi | 88% | 2428 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 50,546 psi | 81% | 2382 fps | 97.7% |
| Lovex S070ᴾ | <<locked>> | 100% | 47,819 psi | 77% | 2362 fps | 96.1% |
| Norma 200 | <<locked>> | 82% | 55,796 psi | 89% | 2343 fps | 100% |
| Norma 201 | <<locked>> | 92% | 53,882 psi | 86% | 2405 fps | 100% |
| Norma 202 | <<locked>> | 92% | 54,302 psi | 87% | 2408 fps | 100% |
| Norma 203B | <<locked>> | 96% | 55,332 psi | 89% | 2477 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 45,252 psi | 73% | 2379 fps | 98% |
| Ramshot Big Game | <<locked>> | 96% | 55,738 psi | 89% | 2500 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 44,657 psi | 72% | 2372 fps | 96% |
| Ramshot TAC | <<locked>> | 90% | 55,201 psi | 89% | 2434 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 90% | 54,273 psi | 87% | 2448 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 88% | 56,014 psi | 90% | 2421 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,795 psi | 56% | 1460 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 54,346 psi | 87% | 2402 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 54,317 psi | 87% | 2431 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 52,576 psi | 84% | 2497 fps | 99.6% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 55,883 psi | 90% | 2575 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 44,788 psi | 72% | 2402 fps | 97.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 46,238 psi | 74% | 2421 fps | 97.3% |
| Rottweil R 901 | <<locked>> | 90% | 54,795 psi | 88% | 2388 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 54,143 psi | 87% | 2402 fps | 100% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 55,085 psi | 88% | 2467 fps | 100% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 53,055 psi | 85% | 2402 fps | 96.2% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 50,546 psi | 81% | 2382 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 92% | 54,172 psi | 87% | 2434 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 54,781 psi | 88% | 2428 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 47,819 psi | 77% | 2362 fps | 96.1% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 54,230 psi | 87% | 2375 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 53,621 psi | 86% | 2395 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 53,635 psi | 86% | 2480 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 53,954 psi | 87% | 2349 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 52,852 psi | 85% | 2405 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 53,606 psi | 86% | 2431 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 56,376 psi | 90% | 2356 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 55,608 psi | 89% | 2349 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 50,995 psi | 82% | 2343 fps | 96.4% |
| Somchem S321 | <<locked>> | 88% | 55,811 psi | 89% | 2448 fps | 100% |
| Somchem S335 | <<locked>> | 92% | 55,129 psi | 88% | 2356 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 56,304 psi | 90% | 2451 fps | 99.9% |
| Somchem S355ᴾ | <<locked>> | 100% | 55,869 psi | 90% | 2467 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,205 psi | 64% | 2336 fps | 99.6% |
| Vihtavuori N130 | <<locked>> | 88% | 55,985 psi | 90% | 2323 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 56,318 psi | 90% | 2343 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 53,229 psi | 85% | 2372 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 54,926 psi | 88% | 2392 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 54,041 psi | 87% | 2408 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 47,732 psi | 77% | 2379 fps | 98.3% |
| Vihtavuori N530 | <<locked>> | 90% | 55,172 psi | 88% | 2415 fps | 100% |
| Vihtavuori N540 | <<locked>> | 96% | 56,405 psi | 90% | 2431 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 46,731 psi | 75% | 2385 fps | 98.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 48,907 psi | 78% | 2372 fps | 99.7% |
| Winchester 748 | <<locked>> | 90% | 54,418 psi | 87% | 2457 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 49,168 psi | 79% | 2438 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 92% | 53,055 psi | 85% | 2438 fps | 99.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 41,176 psi | 66% | 2175 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 44,657 psi | 72% | 2264 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,069 psi | 53% | 2093 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 39,798 psi | 64% | 2224 fps | 99.8% |
| Accurate 2700 | <<locked>> | 92% | 50,995 psi | 82% | 2336 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 31,343 psi | 50% | 2080 fps | 99.4% |
| Accurate 4350 | <<locked>> | 92% | 33,866 psi | 54% | 2188 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 49,821 psi | 80% | 2241 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,227 psi | 81% | 2260 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 37,782 psi | 61% | 2185 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 82% | 34,272 psi | 55% | 2103 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 80% | 49,719 psi | 80% | 2343 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,885 psi | 64% | 2198 fps | 99% |
| Alliant AR-Comp | <<locked>> | 80% | 38,986 psi | 63% | 2195 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,224 psi | 74% | 2365 fps | 99.5% |
| Alliant Power Pro 2000-MR | 56.9 gr | 80% | 33,997 psi | 55% | 2192 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,174 psi | 61% | 2195 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,067 psi | 50% | 2070 fps | 96.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 46,804 psi | 75% | 2254 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 33,649 psi | 54% | 2123 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 92% | 35,476 psi | 57% | 2205 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 84% | 30,632 psi | 49% | 2126 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,776 psi | 78% | 2244 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 36,724 psi | 59% | 2185 fps | 96.1% |
| Bofors RP3 | <<locked>> | 80% | 30,211 psi | 48% | 2067 fps | 96.4% |
| Bofors RP7 | <<locked>> | 98% | 49,850 psi | 80% | 2359 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 41,974 psi | 67% | 2195 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,811 psi | 61% | 2211 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,611 psi | 67% | 2323 fps | 98.1% |
| Hodgdon H322 | <<locked>> | 80% | 45,498 psi | 73% | 2283 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,064 psi | 74% | 2303 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 36,013 psi | 58% | 2165 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 98% | 45,774 psi | 73% | 2385 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 38,029 psi | 61% | 2195 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 30,182 psi | 48% | 2070 fps | 95.3% |
| Hodgdon LEVERevolution | 55.8 gr | 80% | 34,011 psi | 55% | 2165 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,628 psi | 41% | 1273 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,709 psi | 59% | 2156 fps | 97.8% |
| IMR 3031 | <<locked>> | 80% | 37,057 psi | 59% | 2198 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 33,663 psi | 54% | 2083 fps | 95.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 46,847 psi | 75% | 2283 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 47,688 psi | 76% | 2224 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 46,108 psi | 74% | 2303 fps | 95.2% |
| IMR 4831 | <<locked>> | 94% | 35,360 psi | 57% | 2198 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 34,432 psi | 55% | 2152 fps | 96.8% |
| IMR 8208 XBR | <<locked>> | 80% | 39,885 psi | 64% | 2198 fps | 99% |
| Lovex D073.5 | <<locked>> | 80% | 44,367 psi | 71% | 2267 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 35,882 psi | 58% | 2165 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 38,566 psi | 62% | 2139 fps | 97.8% |
| Lovex S062 | <<locked>> | 80% | 33,199 psi | 53% | 2087 fps | 97.7% |
| Lovex S065 | <<locked>> | 92% | 39,537 psi | 63% | 2208 fps | 95.2% |
| Lovex S070 | <<locked>> | 98% | 44,947 psi | 72% | 2316 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 52,431 psi | 84% | 2303 fps | 100% |
| Norma 201 | <<locked>> | 80% | 36,825 psi | 59% | 2146 fps | 98.5% |
| Norma 202 | <<locked>> | 80% | 36,985 psi | 59% | 2159 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 33,054 psi | 53% | 2116 fps | 96.3% |
| Norma URP | <<locked>> | 92% | 34,969 psi | 56% | 2195 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 32,532 psi | 52% | 2123 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 98% | 41,785 psi | 67% | 2323 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 39,726 psi | 64% | 2195 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,638 psi | 62% | 2211 fps | 97.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,149 psi | 69% | 2238 fps | 98.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,730 psi | 41% | 1302 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,715 psi | 72% | 2270 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 41,930 psi | 67% | 2247 fps | 95% |
| ReloadSwiss RS 52 | 55.1 gr | 80% | 34,635 psi | 56% | 2201 fps | 96.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 28,660 psi | 46% | 2083 fps | 97.1% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 36,506 psi | 59% | 2254 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 40,263 psi | 65% | 2316 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 40,466 psi | 65% | 2185 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 35,085 psi | 56% | 2106 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 80% | 28,369 psi | 45% | 2018 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 98% | 49,850 psi | 80% | 2359 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 92% | 39,537 psi | 63% | 2208 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,882 psi | 58% | 2165 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 33,199 psi | 53% | 2087 fps | 97.7% |
| Shooters World SW4350 | <<locked>> | 98% | 44,947 psi | 72% | 2316 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,398 psi | 76% | 2287 fps | 99.7% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,009 psi | 80% | 2352 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 31,807 psi | 51% | 2110 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,674 psi | 76% | 2270 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 37,521 psi | 60% | 2169 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,260 psi | 58% | 2159 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,783 psi | 62% | 2116 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,763 psi | 51% | 2005 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 44,425 psi | 71% | 2251 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 42,685 psi | 68% | 2267 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 38,058 psi | 61% | 2119 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 37,362 psi | 60% | 2172 fps | 97.4% |
| Somchem S355 | <<locked>> | 80% | 29,544 psi | 47% | 2031 fps | 95.5% |
| Somchem S365 | <<locked>> | 88% | 27,340 psi | 44% | 2054 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 44,048 psi | 71% | 2178 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,957 psi | 62% | 2119 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,069 psi | 55% | 2100 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 34,983 psi | 56% | 2106 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 28,021 psi | 45% | 1982 fps | 96.4% |
| Vihtavuori N160 | <<locked>> | 92% | 36,869 psi | 59% | 2198 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 39,740 psi | 64% | 2192 fps | 99% |
| Vihtavuori N540 | <<locked>> | 80% | 33,620 psi | 54% | 2096 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 92% | 35,839 psi | 57% | 2198 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 30,835 psi | 49% | 2051 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 38,682 psi | 62% | 2231 fps | 99.4% |
| Winchester 760 | <<locked>> | 98% | 45,992 psi | 74% | 2385 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,404 psi | 57% | 2159 fps | 97.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 114 powders for .375 H&H Mag. loaded with the .375 | 300gr | CutEdge Maximus. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,575 fps; across all powders the maximum-charge window runs from 1,427 fps to 2,575 fps. Accurate 3100 gives the best case fill at 100 %, and 114 of the 114 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 45–90 %, leaving at least 10 % headroom. The 300.0 gr projectile in 0.375" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, Alliant Reloder-16 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Power Pro 2000-MR, ReloadSwiss RS 52, Hodgdon LEVERevolution rank at the top here: for .375 H&H Mag. with the .375 | 300gr | CutEdge Maximus they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, Alliant Reloder-26, IMR 4350 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.